Nut-lock.



W. KLETTKE.

NUT LOCK.

APPLICATION FILED 05mg. \914.

Patented Oct. 19, 1915.

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. useful Improvements in Nut-Locks, of which WARNER.KLETTKE, OF ESCANABA,'MICHIGA1\T.

NUT-LOCK.

Specificationof Letters Patent.

Patented 01a. 19, 1915.

Application filed December 17, 1914. Serial No. 877,770.

To all whom it may concern Be it known that I, WARNER citizen of the United States, residing at-Es canaba, in the county of Delta and State of Michigan, have invented certain new and the following is .a specification. I

This invention relates to nut locks and has as its. primary object to provide a device of this character wherein the nut'may be locked at substantially any point in its turn ing movementfupon the bolt and wherein any retrograde movement ofthe nut will be effectually prevented.

A further object of the invention is to provide in a device of'this character, a looking key arranged to 'carry a locking ring, the locking key being disposed to seat within thebolt. in engagement with the nut and the locln'ng ring being disposed to coact with the locking key to engage the nut to form a secure and positive connection between the nut and bolt. And the invention has as a still further object to provide an improved nutlock structure wherein the locking 'member mayv be readily applied in use'and will normally resiliently grip thenut for maintaining it in position thereon. 1

Other andincidental objects will appear as the description proceeds and in the. draw. ings, wherein I have illustrated the preferred embodiment of my invention and wherein similar reference characters designate corresponding parts throughout the several views, Figure 1 1s a perspective view of'my improved, nut lock showing the bolt removed as well as illustrating the combined locking key and ring removed'from the nut, Fig. 2 is a horizontal section showing the device assembled in operative position, this view also illustrating, indotted lines, the.

' position of the combined locking key and ring when partially removed, and Fig. 3 1s a vertical section illustrating the coaction between; the; locking ring and the locking keyin engaging the nut.

In the preferred embodiment of my invention, Iemploy a bolt 10 which is screw threaded adjacent one extremity in the usual manner to receive the nut 11, the said bolt upon one. side coextensive with its threaded portiombeing provided with a longitudi nally extending slot or groove 12. The nut 11 centrally thereof, is provided with the usual interiorly threaded bore 13 KLETTKE, a

disposed to engage the threads of the bolt and'uponone side is cut away to provide an annular locking ring seat 14, the seat 1& being concentric with the bore 13 and communicating therewith.

As best illustrated in Fig. 1 of the drawings the seat 14 is of a diameter greater than that of the'bore 13 to define an ofiset at its inner extremity in which is formed anannular rack 15. V

In connection with the bolt and nut thus formed, I provide a combined locking ring of the drawings. More particularly, this element includes a key 17 which is straight and fiat and is provided with a head 18 and a shank 19. The shank 19 is disposed to removably fit within the slot 12 of the bolt and at its extremity opposite the head 18 is cut away longitudinally upon its side edge opposite the head 18 as shown at 20 to provide a laterally projecting shoulder 21.

Formed on the shank 19 at the adjacent extremity thereof and extending laterally from the shank in the same direction withv the head 18, is a terminal spur 21-,the said spurbeveled seat 21 formed in the adjacent lower side face of the nut and surrounding the bolt opening therein, as best shown in Fig. 2 of the drawings, for maintaining the locking ring and key in operative position,

As illustrated, the head 18 projects laterally upon one side of the shank 19 while the inner edge of the said shank for the greater portion of the length thereof, is

straight and uninterrupted to slide freely within the slot 12. The head'l8 upon its inner edge is notched as shown at 22 to fit I within the locking, ring seat 14, the horizontalgwall provided by said notch being arranged to rest against the upper face of the nut to slide freely thereover while the vertical wallof saidnotch is disposed to confront the smooth vertical wall of the seat 14. The inner extremity of the notch 22 of i the head 18 is further cut away to provide a and key indicated as a whole at 16 in Fig. 1 I

being disposed to engage within an annular a plane substantially at right angles-to the plane of the key 17 and the opposite free extremity of whichis disposed to confront the opposite side of the head in spaced relation: 5 thereto as best illustrated in Fig. 3 of the drawings. Formed on the free extremity of thering 24 is a' laterally or downwardly projecting tooth or lug 25 disposedfor se; 'lective engagement with the teeth "of the rack 15, it being observed that the free eX-.

tremity of the tooth is arranged substantially in the same plane with the jshoul der 22.

14 to bear over'the rack 15. In this connection, attention is directed to the fact that the key 17 isv limited in its-inward movement .vvithin the slot 12 by the said ring and by 25'the outer terminal shoulder 26 formed on' the head 18 and previously referred to, the said shoulder bearing over the upper face of.

the nut. Preferably, 'thering 24: is of a diameter slightly greater than the diameter 0*0f the annular seat 1 1 and the said ring being resilient will'consequently. yieldably eng gage by its outer face against the vertical wall of the said seat to maintain the ring and key in operative position. Particular attention is now illustrates the manner in which the ring 2& is vdisposed to coact with the key 17 in engaging the nut. It willbe observedthat 'when'the ring and key are applied in the manner just above set forth, the shoulder 22 of the keywill seat upon the rack 15 to selectively engage thev teeth thereof while pthe tooth'25'ofthe ring will also rest upon 'the said rack to also selectively engageits' teeth, a simultaneousengagement of the shoulder and of the said tooth being had.

The key 17 being operatively connected with.

the bolt 10 through the medium of its shank,

'the said shoulder and toothwilh'therefore,

engage the said rackat substantially any point in the turning'movement of the nut 11, for maintaining the nut stationary upon rthebolt. Particular attention is :also di{ rected to the fact that strain upon thellocking member comprised in the combined-lock ingring and key, and exerted by retrograde.

movement of the nut 11 will be home not alonelby the locking ring24, but..will.be

distributed between the said ring and the key 17 so that the possibility of breakage will be reduced to a minimum. i

From the preceding description, it willibe seen that the locking'member may beireadily 5 applied and removed in use. However, it

directedto Fig. 30f, the drawings which particularly 7 including a. key re'movably. fitted in said slot .7 and provided with. a shoulder having looking engagement with the ,teeth ofithe rack, and a split locking ring carried by said key I and resting in's'aid-vseat -said 'lockingring f 1 may be desired-to adjust the nut-upon the bolt without entirely fremoving the locking member and asia'imeans for facilitating this operation, I provide the notch 20,and shoulder 21; As shown in dotted lines in Fig. 2

of thedrawings, the locking member may be withdrawn from within the slot 12"untiltheshoulder -21 engages over the adjacent end face 'of thebolt when thelmkingmemher will then be supported by the said shoulvder while the free extremity-of the shank 19 will beheld in1positionfwithintheslot' 12 by" the presenceofthe nut. .Then'ut may then 1 be 'adjusted"longitudinally. upon the bolt as desired and upon the completion" of such adjustment, the lockingmemberin'ay then again. be moved to operativeposition to engage the nutj It willthereforebe sednfthat I p-rovide a very simple and efficient construction for 35" the purpose set forth wherein thenut, Will be. L

.fheldatf'substantially any point inits' turning movement upon thebolt; wherein the lock: ing member will resiliently engage theinut to maintain it" in operative position thereon, 9

and wherein stress upomthe said member will" be distributed between a ;rel'atively j e e t a yieldahleijelement. it 1 :Will f rther be seen thatqin thus distributing stress upon, the locking memb th life thereof, under ordinary circumstances, will be greatly prolonged Having thus described my invention, what p *I claim and. desire to secure by LettersP at 2 p entis:

1. v A device of thecharacterldescribedineluding a nut disposed for engagement with a bolt and having a locking ring seat formed extremity'in a rack, and a locking member including a, key operatively' engaging the bolt and having a shoulder 'formed'thereon j having locking engagement with the teeth 1 v of the rack, and a locking ring carried by said key and. resting in said-seat, said ring having locking engagement with the. teeth 1 p of saidrackand coactingwith said shoulder in holding the nut against retrograde movef J I menty m s 2; A device of the character'des'cribedincludinga bolt having a slot formed therein, p a nut engaging the bolt and provided with a' s 1 locking ring. seat terminating. at f its inner extremity :in' a rack, and a-locking' member it being provided at itsfree extremity with a. tooth having locking engagement with the teeth Ofi'the a k and coa'cting with df shoulder of the key 'inholding. the nut 75 against retrograde movements; f"

3., A device of the character described iii- 1 6 f in) therein, said seat" terminating at its inner 1 I eluding a bolt having a slot formed therein, carried by said key and selectively engag- 10 a nut engaging the bolt and provided with a ing the teeth of the rack.

rack, and a locking member including a key In testimony whereof I aflix my signature havingda sharllikbremovalolyl l gated in said slot, in presence of two witnesses.

the sai shan eing note e at its inner extremity and upon one edge to provide a WARNER KLETTKE' shoulder adapted for engagement over the Witnesses:

free end face of the bolt with said notch HERBERT J. BOURDLAIEs,

bearing within said slot, and a locking ring 'GLODVIN J. ISAACSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

